Dockerfile: Fixed node version mismatch

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:18-bullseye AS build
+FROM node:18-bullseye AS prebuild
 ENV ELASTIC_URL='http://elastic:9200' \
     ELASTIC_USER='elastic' \
     ELASTIC_PASSWORD='' \
@@ -9,6 +9,7 @@ ENV ELASTIC_URL='http://elastic:9200' \
     DEFAULT_TIMEOUT_MILLISECONDS='10000' \
     BANNED_DOMAINS='' \
     TZ='UTC'
+FROM prebuild AS build
 WORKDIR /srv
 COPY application/package*.json ./
 RUN npm install
@@ -18,7 +19,7 @@ RUN npm run build
 FROM build AS dev
 CMD npx tsc --watch
 
-FROM node:16-bullseye AS prod
+FROM prebuild AS prod
 RUN groupadd -g 1001 nodejs
 RUN useradd -m -u 1001 -g 1001 nextjs
 WORKDIR /srv